Waterproof Nylon fabric with good quality webbing construction.
The new and innovative swimming aid will overload any swimming stoke to improve explosive speed, endurance and power in the water. As water flows through the chute it creates a drag that can be regulated by simply adjusting the back setting to allow for more or less water. The smaller the setting the greater the drag and the harder the training! Includes waist belt, chute, and instruction book.